// Here is different tree script handlers
var aktMon;
function DateHandler1(day,month,year) {
    var monIndex;
    if (month < aktMon) {
    monIndex = month + 12 - aktMon +1;
    } else {
    monIndex = month - aktMon +1;
    }
    curMonth = month;
    curYear = year;
    document.forms['MainForm']['Day'].options[day].selected = true;
    document.forms['MainForm']['month_1'].options[monIndex].selected = true;
};

function DateHandler2(day,month,year) {
    var monIndex;
    if (month < aktMon) {
    monIndex = month + 12 - aktMon +1;
    } else {
    monIndex = month - aktMon +1;
    }
    curMonth = month;
    curYear = year;
    document.forms['MainForm']['RetDay'].options[day].selected = true;
    document.forms['MainForm']['month_2'].options[monIndex].selected = true;
};

function firstHandler(id,title)
{
    document.forms['MainForm']['from'].value = title;
};

function secondHandler(id,title)
{
    document.forms['MainForm']['to'].value = title;
};
function thirdHandler(id,title)
{
    document.forms['MainForm']['from2'].value = title;
};
function fourthHandler(id,title)
{
    document.forms['MainForm']['to2'].value = title;
};



startBrowserParametersCapture(true);
aktMon = 04;
months = Array('January','February','March','April','May','June','July','August','September','October','November','December');
dayNames = Array('Mo','Tu','We','Th','Fr','Sa','Su');
curMonth = 04;
curYear = 2006;

function getSelected(ref,sel){
    for(i=0;i<=ref.length;i++){
        if(ref.options[i].value == sel){
            return i;
        }
    }
    return 0;
}

function _dateCheck(fref,elem){

}
function dateCheck(fref,elem){
    form = fref.form;

    var monat1 = form.month_1.options[form.month_1.selectedIndex].value.split("-");
    var monat2 = form.month_2.options[form.month_2.selectedIndex].value.split("-");

    var dep = new Date(monat1[1],(monat1[0] -1),parseInt(form.Day.options[form.Day.selectedIndex].value));
    var ret = new Date(monat2[1],(monat2[0] -1),parseInt(form.RetDay.options[form.RetDay.selectedIndex].value));
    switch(elem){
    case "Day":
    case "month_1":
        if(dep > ret){
            var neuMon = dep.getMonth() + 1;
            var neuJahr = dep.getFullYear();
            var mon2 = neuMon + "-" + neuJahr;
            form.RetDay.selectedIndex = dep.getDate();
            form.month_2.selectedIndex = getSelected(form.month_2,mon2);
        }
        break;
    case "RetDay":
    case "month_2":
        if(ret < dep){
            var neuMon = ret.getMonth() + 1;
            var neuJahr = ret.getFullYear();
            var mon1 = neuMon + "-" + neuJahr;
            form.Day.selectedIndex = ret.getDate();
            form.month_1.selectedIndex = getSelected(form.month_1,mon1);
        }
        break;
    }
}

function MM_dragLayer(objName,x,hL,hT,hW,hH,toFront,dropBack,cU,cD,cL,cR,targL,targT,tol,dropJS,et,dragJS) {
  var i,j,aLayer,retVal,curDrag=null,NS=document.layers, MZ=(!document.all && document.getElementById),curLeft, curTop;
  if (!document.all && !document.layers && !document.getElementById) return false;
  retVal = true; if(!NS && !MZ && event) event.returnValue = true;
  if (MM_dragLayer.arguments.length > 1) {
    curDrag = (MZ)?document.getElementById(objName):MM_findObj(objName); if (!curDrag) return false;
    if (!document.allLayers) { document.allLayers = new Array();
      with (document) if (NS) { for (i=0; i<layers.length; i++) allLayers[i]=layers[i];
        for (i=0; i<allLayers.length; i++) if (allLayers[i].document && allLayers[i].document.layers)
          with (allLayers[i].document) for (j=0; j<layers.length; j++) allLayers[allLayers.length]=layers[j];
      } else if(MZ){
            var mzall = getElementsByTagName("div");
            for (i=0;i<mzall.length;i++) if (mzall[i].style&&mzall[i].style.position) allLayers[allLayers.length]=mzall[i];
          } else {
                for (i=0;i<all.length;i++) if (all[i].style&&all[i].style.position) allLayers[allLayers.length]=all[i];
          }}
    curDrag.MM_dragOk=true; curDrag.MM_targL=targL; curDrag.MM_targT=targT;
    curDrag.MM_tol=Math.pow(tol,2); curDrag.MM_hLeft=hL; curDrag.MM_hTop=hT;
    curDrag.MM_hWidth=hW; curDrag.MM_hHeight=hH; curDrag.MM_toFront=toFront;
    curDrag.MM_dropBack=dropBack; curDrag.MM_dropJS=dropJS;
    curDrag.MM_everyTime=et; curDrag.MM_dragJS=dragJS;
    curDrag.MM_oldZ = (NS)?curDrag.zIndex:curDrag.style.zIndex;
    curLeft= (NS)?curDrag.left:(MZ)?curDrag.style.left.replace("px","")/1:curDrag.style.pixelLeft;
        curDrag.MM_startL = curLeft;
    curTop = (NS)?curDrag.top:(MZ)?curDrag.style.top.replace("px","")/1:curDrag.style.pixelTop;
        curDrag.MM_startT = curTop;
    curDrag.MM_bL=(cL<0)?null:curLeft-cL; curDrag.MM_bT=(cU<0)?null:curTop -cU;
    curDrag.MM_bR=(cR<0)?null:curLeft+cR; curDrag.MM_bB=(cD<0)?null:curTop +cD;
    curDrag.MM_LEFTRIGHT=0; curDrag.MM_UPDOWN=0; curDrag.MM_SNAPPED=false; //use in your JS!
    document.onmousedown = MM_dragLayer; document.onmouseup = MM_dragLayer;
    if (NS||MZ) document.captureEvents(Event.MOUSEDOWN|Event.MOUSEUP);
  } else {
    var theEvent = ((NS||MZ)?objName.type:event.type);
    if (theEvent == 'mousedown') {
      var mouseX = (NS||MZ)?objName.pageX : event.clientX + document.body.scrollLeft;
      var mouseY = (NS||MZ)?objName.pageY : event.clientY + document.body.scrollTop;
      var maxDragZ=null; document.MM_maxZ = 0;
      for (i=0; i<document.allLayers.length; i++) { aLayer = document.allLayers[i];
        var aLayerZ = (NS)?aLayer.zIndex:aLayer.style.zIndex/1;
        if (aLayerZ > document.MM_maxZ) document.MM_maxZ = aLayerZ;
        var isVisible = (((NS)?aLayer.visibility:aLayer.style.visibility).indexOf('hid') == -1);
        if (aLayer.MM_dragOk != null && isVisible) with (aLayer) {
          var parentL=0; var parentT=0;
          if (!NS) { parentLayer = (MZ)?aLayer.parentNode:aLayer.parentElement;
            while (parentLayer != null && parentLayer.style.position) {
              parentL += parentLayer.offsetLeft/1; parentT += parentLayer.offsetTop/1;
              parentLayer = (MZ)?parentLayer.parentNode:parentLayer.parentElement;
          } }
          var tmpX=mouseX-(((NS)?pageX:((MZ)?style.left.replace("px","")/1:style.pixelLeft)+parentL)+MM_hLeft);
          var tmpY=mouseY-(((NS)?pageY:((MZ)?style.top.replace("px","")/1:style.pixelTop) +parentT)+MM_hTop);
          var tmpW = MM_hWidth;  if (tmpW <= 0) tmpW += ((NS)?clip.width :offsetWidth);
          var tmpH = MM_hHeight; if (tmpH <= 0) tmpH += ((NS)?clip.height:offsetHeight);
          if ((0 <= tmpX && tmpX < tmpW && 0 <= tmpY && tmpY < tmpH) && (maxDragZ == null
              || maxDragZ <= aLayerZ)) { curDrag = aLayer; maxDragZ = aLayerZ; } } }
      if (curDrag) {
        document.onmousemove = MM_dragLayer; if (NS) document.captureEvents(Event.MOUSEMOVE);
        curLeft = (NS)?curDrag.left:(MZ)?curDrag.style.left.replace("px","")/1:curDrag.style.pixelLeft;
        curTop = (NS)?curDrag.top:(MZ)?curDrag.style.top.replace("px","")/1:curDrag.style.pixelTop;
        MM_oldX = mouseX - curLeft; MM_oldY = mouseY - curTop;
        document.MM_curDrag = curDrag;  curDrag.MM_SNAPPED=false;
        if(curDrag.MM_toFront) {
          eval('curDrag.'+((NS)?'':'style.')+'zIndex=document.MM_maxZ'+((MZ)?'':'+1') );
          if (!curDrag.MM_dropBack) document.MM_maxZ++; }
        retVal = false; if(!NS&&!MZ) event.returnValue = false;
    } } else if (theEvent == 'mousemove') {
      if (document.MM_curDrag) with (document.MM_curDrag) {
        var mouseX = (NS||MZ)?objName.pageX : event.clientX + document.body.scrollLeft;
        var mouseY = (NS||MZ)?objName.pageY : event.clientY + document.body.scrollTop;
        newLeft = mouseX-MM_oldX; newTop  = mouseY-MM_oldY;
        if (MM_bL!=null) newLeft = Math.max(newLeft,MM_bL);
        if (MM_bR!=null) newLeft = Math.min(newLeft,MM_bR);
        if (MM_bT!=null) newTop  = Math.max(newTop ,MM_bT);
        if (MM_bB!=null) newTop  = Math.min(newTop ,MM_bB);
        MM_LEFTRIGHT = newLeft-MM_startL; MM_UPDOWN = newTop-MM_startT;
        if (NS) {left = newLeft; top = newTop;}
                else if (MZ){style.left = newLeft; style.top = newTop;}
        else {style.pixelLeft = newLeft; style.pixelTop = newTop;}
        if (MM_dragJS) eval(MM_dragJS);
        retVal = false; if(!NS&&!MZ) event.returnValue = false;
    } } else if (theEvent == 'mouseup') {
      document.onmousemove = null;
      if (NS||MZ) document.releaseEvents(Event.MOUSEMOVE);
      if (NS||MZ) document.captureEvents(Event.MOUSEDOWN); //for mac NS
      if (document.MM_curDrag) with (document.MM_curDrag) {
        if (typeof MM_targL =='number' && typeof MM_targT == 'number' &&
            (Math.pow(MM_targL-((NS)?left:(MZ)?style.left.replace("px","")/1:style.pixelLeft),2)+
             Math.pow(MM_targT-((NS)?top:(MZ)?style.top.replace("px","")/1:style.pixelTop),2))<=MM_tol) {
          if (NS) {left = MM_targL; top = MM_targT;}
                  else if(MZ){style.left = MM_targL; style.top = MM_targT;}
          else {style.pixelLeft = MM_targL; style.pixelTop = MM_targT;}
          MM_SNAPPED = true; MM_LEFTRIGHT = MM_startL-MM_targL; MM_UPDOWN = MM_startT-MM_targT; }
        if (MM_everyTime || MM_SNAPPED) eval(MM_dropJS);
        if(MM_dropBack) {if (NS) zIndex = MM_oldZ; else style.zIndex = MM_oldZ;}
        retVal = false; if(!NS&&!MZ) event.returnValue = false; }
      document.MM_curDrag = null;




    }
    if (NS||MZ) document.routeEvent(objName);
  } return retVal;
}
function Auswahlbusin () {
  for (i = 0; i < document.MainForm.tarif_klasse.length; i++)
    if (document.MainForm.tarif_klasse.options[i].defaultSelected != true)
      document.MainForm.tarif_klasse.options[1].selected = true;
}
function Auswahleco () {
  for (i = 0; i < document.MainForm.tarif_klasse.length; i++)
    if (document.MainForm.tarif_klasse.options[i].defaultSelected == true)
      document.MainForm.tarif_klasse.options[0].selected = true;
}
onerror = stopError;
function stopError()
{
return true;
}

function disable(){
    if (document.MainForm.onewayswitch[1].checked) {
        document.MainForm.RetDay.disabled= true;
        document.MainForm.month_2.disabled= true;
    }
}
function enable(){
    document.MainForm.RetDay.disabled = false;
    document.MainForm.month_2.disabled = false;
}

function CheckRatio(){
	if((document.MainForm.pax_inf.selectedIndex -1) > document.MainForm.pax.selectedIndex){
		alert('The number of infants cannot exceed the number of adults. Please verify the number of infants. ');
	}
}

function CheckRatio2(){
	if(((document.MainForm.pax.selectedIndex + 1) * 2) < document.MainForm.pax_chd.selectedIndex){
		alert('The number of children cannot be more than the double of the number of adults. Please verify the number of children. ');
	}
}